x2 was great for me, very stable, I know other complained it had issues but I don't recall any issues that stopped users from using it.
just nagging bugs and certain things people didn't like to much.
what some users were saying didn't work, other users were saying worked fine...and the other way around or what ever you wanna call it.
IMO there was not enough people complaining of the same thing for them to fix certain things.
would I have wanted a B patch. yes.
did I need it? no but it would have been nice.